from the install document, chapter 5.4 Installing Portal on a JBoss Single Server
To install Portal on a JBoss single server:
1. In the Select the Home Directory for JBoss Server box, enter the name of the
configuration to which you want to deploy Portal. You can use any name that is
meaningful for your organization.
in command window, shows
Please enter the JBoss server config name: (DEFAULT: ): what should I input?